There is no research that has identified the answer to this question and AMUSE project will try to bring some light into this with the development of a research study aimed at identifying the profile of those within the spectrum who can benefit more from this model of schooling.
The practice available shows that students of an Autism Unit are usually those who have a diagnosis of autism and intellectual disability. Those students usually find more difficulties to follow the regular curriculum, even with the relevant curriculum adaptations, or they only follow a specific part of it.